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1. Re: Area inside convex hull (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Wed, 4 Apr 2001 14:28:43 +0930
Here is a link to a nice computational geometry site that deal with polygon Duncan http://compgeom.cs.uiuc.edu/~jeffe/compgeom/code.html#poly ** Dr. Duncan Mackay Biology Flinders University GPO Box
/archives/html/s-news/2001-04/msg00031.html (8,429 bytes)

2. [S] Advice on lme formula construction - Nonplussed to Splussed?? (score: 1)
Author: .edu>
Date: Thu, 31 Aug 2000 09:40:56 +0930
llowing functions: ms() Finds a local minimum of a multivariate function nlmin() Finds a local minimum of a nonlinear function using a general quasi-Newton
/archives/html/s-news/2000-08/msg00285.html (8,516 bytes)

3. [S] corrupted database (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Fri, 29 Oct 1999 10:44:36 +0930
Hi, can anyone help with the following problem? A month ago, I backed up a _Data folder onto a CD. Now I have inadvertently removed some objects from the current version of that database on my hard d
/archives/html/s-news/1999-10/msg00234.html (8,078 bytes)

4. RE: [S] corrupted database (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Mon, 1 Nov 1999 15:12:16 +1030
with respect to my posting below, many thanks to Nick Ellis, Hong Ooi, Eusebio Arenal Gutierrez, Prof Brian Ripley and Bill Dunlap for their helpful comments. The problem was simply that a) Splus ne
/archives/html/s-news/1999-10/msg00252.html (9,292 bytes)

5. [S] S-plus on a Mac under Wintel emulation???? (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Wed, 22 Sep 1999 09:19:18 +0930
Hi Splussers, I'm a little surprised at the apparent absence on this newsgroup of any mention of someone trying to run Splus under Wintel emulation software on a Mac. Can it be done??? Can it be done
/archives/html/s-news/1999-09/msg00205.html (7,320 bytes)

6. [S] lme, nlme and repeated measures ANOVA (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Tue, 15 Jun 1999 12:09:34 +0930
Hi Splussers, would someone please point me at some references (or to their own opinions!) as to the circumstances, kinds of data etc, under which one would likely prefer to run a linear mixed-effect
/archives/html/s-news/1999-06/msg00126.html (7,946 bytes)

7. replies to [S] lme, nlme and repeated measures ANOVA (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Tue, 22 Jun 1999 10:26:01 +0930
Regarding my original post below, THANKS to Joel Dubin, John Maindonald, Regula Schwager-Suter, Renaud Lancelot, and Prof Brian Ripley for your most helpful and prompt responses. Most of my responden
/archives/html/s-news/1999-06/msg00171.html (9,440 bytes)

8. [S] names, and names of names ... (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Mon, 12 Apr 1999 12:32:08 +0930
Hello all, I'm trying to write a function that will use the name of an input parameter to label the components of an output list. The following code fragment will hopefully show the sort of thing I'm
/archives/html/s-news/1999-04/msg00082.html (8,118 bytes)

9. [S] overlaps of polygons (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Mon, 22 Feb 1999 11:56:41 +1030
Greetings S'ers; does anyone know of an S-function to calculate the overlap area between two polygons (not necessarily convex)? My problem is a little easier than the general case in that my polygons
/archives/html/s-news/1999-02/msg00112.html (7,310 bytes)

10. RE: [S] The Group item moniker you specified is not valid... (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Tue, 19 Jan 1999 09:36:45 +1030
from discussions I've had with other users and S-plus support; yes, it does seem that the embedded blank in the file name is the source of your problems when trying to re-open a saved graph sheet. S
/archives/html/s-news/1999-01/msg00105.html (10,004 bytes)

11. [S] corrupted Graph sheets --- HELP!!!!! (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Tue, 6 Oct 1998 17:28:50 +0930
Can anyone help with the following recurrent and maddening problem??! I create Graph sheets (.sgr files) using Splus 4.5 under Win95. When I later try and re-open them, I intermittently get the follo
/archives/html/s-news/1998-10/msg00033.html (7,728 bytes)

12. [S] problems opening saved graph sheets (score: 1)
Author: "Duncan Mackay" <Duncan.Mackay@flinders.edu.au>
Date: Tue, 7 Jul 1998 13:04:25 +0930
I am having sporadic problems with retrieving saved Graph Sheets created Splus 4.5 running under Win95 with 64MB RAM. I create and save graph sheets without any problems (error messages), but several
/archives/html/s-news/1998-07/msg00055.html (8,040 bytes)

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